Why isn't there an option listed for Porsche 911 with the X51 Power kit? It was a $18000 option.
Why isn't there an option listed for Porsche 911 with the X51 Power kit? It was
a $18000 option. It was available in the 2006 Porsche 911/ 997. Expensive
option from the factory. Very rare but was included in the Porsche 911 club car
standard and was available for other cars as well.